CVE-2026-84646
CVSS v3
4.3
MEDIUM
EPSS Score
0.3 %
exploit probability, as of 2026-10-02
CISA KEV
No
known exploited
Exploitation
—
SSVC status
Description
In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user objects can appear as nested field values in other deserialized XML objects, allowing attackers with Overall/Read permission to create user objects by submitting crafted XML.
Technical details
- Published
- 2026-09-02
- Last Modified
- 2026-09-02
Frequently asked questions
What is CVE-2026-84646?
In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, user objects can appear as nested field values in other deserialized XML objects, allowing attackers with Overall/Read permission to create user objects by submitting crafted XML.
Is CVE-2026-84646 actively exploited?
Active exploitation of CVE-2026-84646 has not been confirmed. Its EPSS score was 0.3% on 2026-10-02, the estimated probability of exploitation in the next 30 days.
What is the CVSS score for CVE-2026-84646?
CVE-2026-84646 has a CVSS v3 base score of 4.3 (MEDIUM severity).
Is CVE-2026-84646 affecting your environment?
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